MESON Chess Problem Database

Problem Display
PID: 80706 (8/1n6/Q7/1Pp1Np1n/4pR2/3Nk3/1B6/3K4 w - - 0 1)

Dyachuk, Vasyl Vasilovich

1st Prize, Liberte-Dimanche, 1995-1996

8/1n6/Q7/1Pp1Np1n/4pR2/3Nk3/1B6/3K4

#2

7 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Qa3?
      • threat
        • 2.Sc4#
      • 1...exd3
        • 2.Bc1#
      • 1...Sa5
        • 2.Qxc5#
      • 1...Sd6
        • 2.Qxc5#
      • 1...c4
        • 2.Sxc4#
      • 1...Sxf4!
    • 1.Qa4?
      • threat
        • 2.Bc1#
      • 1...exd3
        • 2.Rf3#
      • 1...c4!
    • 1.Qa5?
      • threat
        • 2.Qe1#
        • 2.Qd2#
      • 1...Sxf4
        • 2.Qd2#
      • 1...exd3
        • 2.Qd2#
      • 1...Sg3
        • 2.Qd2#
      • 1...Sxa5!
    • 1.Qd6?
      • threat
        • 2.Sc4#
        • 2.Bc1#
      • 1...Sxf4
        • 2.Bc1#
      • 1...exd3
        • 2.Sc4#
      • 1...Sa5
        • 2.Bc1#
        • 2.Qxc5#
      • 1...c4
        • 2.Sxc4#
        • 2.Bc1#
        • 2.Bd4#
        • 2.Qd4#
      • 1...Sxd6!
    • 1.Qg6?
      • threat
        • 2.Qg1#
      • 1...Sg3
        • 2.Qxg3#
      • 1...exd3!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Rf3#
      • 1...Sxf4
        • 2.Qxf4#
      • 1...exd3
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • S(F)
      • Vars
        • P(b);P_SPINP(b),XS(C)::B(B)
        • S(f);N_GUARD::QAB(G),XP(c)
        • P(c);::S(F),XP(c)
      • Refutation
        • S(e);XR(D)
    • Try
      • Q(G);
      • Threat
        • B(B)
      • Vars
        • P(b);N_GUARD,XS(C)::R1(D)
      • Refutation
        • P(c);
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(e);XR(D)::QAB1(G)
        • P(b);XS(C)::QAB1(G)
        • S(e);::QAB1(G)
      • Refutation
        • S(f);XQ(G)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(e);XR(D)::B(B)
        • P(b);XS(C)::S(F)
      • Refutation
        • S(f);XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • S(e);N_GUARD::QAR2(G),XS(e)
      • Refutation
        • P(b);XS(C)
  • Actual
    • Q(G);
    • Threat
      • QAB(G)+R(D),DCHECK
    • Vars
      • S(e);OGATE,P_SPINS(e),XR(D)::QAB1(G),XS(e)
      • P(b);SBLOCK,XS(C)::S(F)
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